<script lang="ts" setup>
import {
    Edit,
    Delete
} from '@element-plus/icons-vue'

import { onMounted, ref } from 'vue'

//文章分类数据模型
const categorys = ref([
    {
        "id": 3,
        "categoryName": "美食",
        "categoryAlias": "my",
        "createTime": "2023-09-02 12:06:59",
        "updateTime": "2023-09-02 12:06:59"
    },
    {
        "id": 4,
        "categoryName": "娱乐",
        "categoryAlias": "yl",
        "createTime": "2023-09-02 12:08:16",
        "updateTime": "2023-09-02 12:08:16"
    },
    {
        "id": 5,
        "categoryName": "军事",
        "categoryAlias": "js",
        "createTime": "2023-09-02 12:08:33",
        "updateTime": "2023-09-02 12:08:33"
    }
])

//用户搜索时选中的分类id
const categoryId = ref('')

//用户搜索时选中的发布状态
const state = ref('')

//用户搜索的内容
const content = ref('')

//文章列表数据模型
const articles = ref([
    {
        "id": 5,
        "title": "陕西旅游攻略",
        "content": "兵马俑,华清池,法门寺,华山...爱去哪去哪...",
        "coverImg": "https://big-event-gwd.oss-cn-beijing.aliyuncs.com/9bf1cf5b-1420-4c1b-91ad-e0f4631cbed4.png",
        "state": "草稿",
        "categoryId": 2,
        "createTime": "2023-09-03 11:55:30",
        "updateTime": "2023-09-03 11:55:30"
    },
    {
        "id": 5,
        "title": "陕西旅游攻略",
        "content": "兵马俑,华清池,法门寺,华山...爱去哪去哪...",
        "coverImg": "https://big-event-gwd.oss-cn-beijing.aliyuncs.com/9bf1cf5b-1420-4c1b-91ad-e0f4631cbed4.png",
        "state": "草稿",
        "categoryId": 2,
        "createTime": "2023-09-03 11:55:30",
        "updateTime": "2023-09-03 11:55:30"
    },
    {
        "id": 5,
        "title": "陕西旅游攻略",
        "content": "兵马俑,华清池,法门寺,华山...爱去哪去哪...",
        "coverImg": "https://big-event-gwd.oss-cn-beijing.aliyuncs.com/9bf1cf5b-1420-4c1b-91ad-e0f4631cbed4.png",
        "state": "草稿",
        "categoryId": 2,
        "createTime": "2023-09-03 11:55:30",
        "updateTime": "2023-09-03 11:55:30"
    },
])

//分页条数据模型
const pageNum = ref(1)//当前页
const total = ref(20)//总条数
const pageSize = ref(3)//每页条数

//当每页条数发生了变化，调用此函数
const onSizeChange = (size) => {
    pageSize.value = size
    articleList()
}
//当前页码发生变化，调用此函数
const onCurrentChange = (num) => {
    pageNum.value = num
    articleList()
}


//回显文章分类
import { articleCategoryListService, articleListService,articleAddService,picUploadService ,articleUpdateService,articleDeleteService} from '@/api/article.js'
const articleCategoryList = async () => {
    let result = await articleCategoryListService();

    categorys.value = result.data;
}

//获取文章列表数据
// const articleList = async () => {
//     let params = {
//         pageNum: pageNum.value,
//         pageSize: pageSize.value,
//         categoryId: categoryId.value ? categoryId.value : null,
//         state: state.value ? state.value : null
//     }
//     let result = await articleListService(params);

//     //渲染视图
//     total.value = result.data.total;
//     articles.value = result.data.items;

//     //处理数据,给数据模型扩展一个属性categoryName,分类名称
//     for (let i = 0; i < articles.value.length; i++) {
//         let article = articles.value[i];
//         for (let j = 0; j < categorys.value.length; j++) {
//             if (article.categoryId == categorys.value[j].id) {
//                 article.categoryName = categorys.value[j].categoryName;
//             }
//         }
//     }
// }
const articleList = async () => {
    let params = {
        pageNum: pageNum.value,
        pageSize: pageSize.value,
        categoryId: categoryId.value ? categoryId.value : null,
        state: state.value ? state.value : null,
        content: content.value ? content.value : null
    }
    let result = await articleListService(params);

    //渲染视图
    total.value = result.data.total;
    articles.value = result.data.items;

    //处理数据,给数据模型扩展一个属性categoryName,分类名称
    for (let i = 0; i < articles.value.length; i++) {
        let article = articles.value[i];
        for (let j = 0; j < categorys.value.length; j++) {
            if (article.categoryId == categorys.value[j].id) {
                article.categoryName = categorys.value[j].categoryName;
            }
        }
    }
}

articleCategoryList()
articleList();

import { QuillEditor } from '@vueup/vue-quill'
import '@vueup/vue-quill/dist/vue-quill.snow.css'
import { Plus } from '@element-plus/icons-vue'
//控制抽屉是否显示
const visibleDrawer = ref(false)
//添加表单数据模型
const articleModel = ref({
    title: '',
    categoryId: '',
    coverImg: '',
    content: '',
    state: '',
    Img: []
})
// let Img = ref([])

//导入token
import { useTokenStore } from '@/stores/token.js';
const tokenStore = useTokenStore();


//上传成功的回调函数
const uploadSuccess = (result)=>{
    articleModel.value.coverImg = result.data;
    console.log(articleModel.value.coverImg);
}


// import type { UploadInstance } from 'element-plus'
let articleid = ref('')
let articleimg = ref('')
//自定义上传
const handlehttprequest = (v)=>{
        // console.log(v.file)
        articleimg.value = v.file
}


const title = ref('')
//添加文章
 import {ElMessage} from 'element-plus'
const addArticle = async (clickState)=>{
    //把发布状态赋值给数据模型
    articleModel.value.state = clickState;

    //调用接口
    let result = await articleAddService(articleModel.value);

    //ElMessage.success(result.msg? result.msg:'添加成功');

    articleid.value=result.data;
    console.log(articleimg.value);
  
    let fileData = new FormData();
    fileData.append("file",articleimg.value)
    fileData.append("id",articleid.value)
    let result1 = await picUploadService(fileData);
    articleModel.value.coverImg = result.data;
    ElMessage.success(result1.msg? result1.msg:'添加成功');
    //让抽屉消失
    visibleDrawer.value = false;

    //刷新当前列表
    articleList()

}

//编辑界面
const showDialog = (row) => {
    articleModel.value.Img = [];
    visibleDrawer.value = true; title.value = '编辑文章'
    //数据拷贝
    articleModel.value.title = row.title;
    articleModel.value.categoryId = row.categoryId;
    articleModel.value.coverImg = row.coverImg;
    articleModel.value.content = row.content;
    articleModel.value.state = row.state;
    //扩展id属性,将来需要传递给后台,完成分类的修改
    articleModel.value.id = row.id
}

//编辑文章
const updateArticle = async (clickState) => {
  
    //把发布状态赋值给数据模型
    articleModel.value.state = clickState;

    //调用接口
    let result = await articleUpdateService(articleModel.value);

    

    articleid.value=result.data;
    console.log(articleimg.value);
  
    if(articleimg.value!==null){
        let fileData = new FormData();
        fileData.append("file",articleimg.value)
        fileData.append("id",articleid.value)
        let result1 = await picUploadService(fileData);
        articleModel.value.coverImg = result.data;
        //ElMessage.success(result1.msg? result1.msg:'添加成功');
    }
    
    ElMessage.success(result.msg? result.msg:'添加成功');

    //刷新当前列表
    articleList()

    //隐藏弹窗
    visibleDrawer.value = false;

    

}

//清空数据
const clearData = () => {
    articleModel.value.title = "";
    articleModel.value.categoryId = "";
    articleModel.value.coverImg = "";
    articleModel.value.content = " ";
    articleModel.value.state = "";
    articleModel.value.Img = [];
}

//删除文章
import {ElMessageBox} from 'element-plus'
const deleteArticle = (row) => {
    //提示用户  确认框

    ElMessageBox.confirm(
        '你确认要删除该文章吗?',
        '温馨提示',
        {
            confirmButtonText: '确认',
            cancelButtonText: '取消',
            type: 'warning',
        }
    )
        .then(async () => {
            //调用接口
            let result = await articleDeleteService(row.id);
            ElMessage({
                type: 'success',
                message: '删除成功',
            })
            //刷新列表
            articleList();
        })
        .catch(() => {
            ElMessage({
                type: 'info',
                message: '用户取消了删除',
            })
        })
}
</script>
<template>
    <el-card class="page-container">
        <template #header>
            <div class="header">
                <span>文章管理</span>
                <div class="extra">
                    <el-button type="primary" @click="visibleDrawer = true, title = '添加文章', clearData()">添加文章</el-button>
                </div>
            </div>
        </template>
        <!-- 搜索表单 -->
        <el-form inline>
            <el-form-item label="关键词：">
                    <el-input placeholder="请输入" v-model="content"></el-input>
            </el-form-item>

            <el-form-item label="文章分类：">
                <el-select placeholder="请选择" v-model="categoryId">
                    <el-option v-for="c in categorys" :key="c.id" :label="c.categoryName" :value="c.id">
                    </el-option>
                </el-select>
            </el-form-item>

            <el-form-item label="发布状态：">
                <el-select placeholder="请选择" v-model="state">
                    <el-option label="已发布" value="已发布"></el-option>
                    <el-option label="草稿" value="草稿"></el-option>
                </el-select>
            </el-form-item>
            <el-form-item>
                <el-button type="primary" @click="articleList">搜索</el-button>
                <el-button @click="categoryId = ''; state = ''; content = ''">重置</el-button>
            </el-form-item>
        </el-form>
        <!-- 文章列表 -->
        <el-table :data="articles" style="width: 100%">
            <el-table-column label="文章标题" width="400" prop="title"></el-table-column>
            <el-table-column label="分类" prop="categoryName"></el-table-column>
            <el-table-column label="发表时间" prop="createTime"> </el-table-column>
            <el-table-column label="状态" prop="state"></el-table-column>
            <el-table-column label="操作" width="100">
                <template #default="{ row }">
                    <el-button :icon="Edit" circle plain type="primary" @click="showDialog(row)"></el-button>
                    <el-button :icon="Delete" circle plain type="danger" @click="deleteArticle(row)"></el-button>
                </template>
            </el-table-column>
            <template #empty>
                <el-empty description="没有数据" />
            </template>
        </el-table>
        <!-- 分页条 -->
        <el-pagination v-model:current-page="pageNum" v-model:page-size="pageSize" :page-sizes="[3, 6, 10, 15]"
            layout="jumper, total, sizes, prev, pager, next" background :total="total" @size-change="onSizeChange"
            @current-change="onCurrentChange" style="margin-top: 20px; justify-content: flex-end" />

        <!-- 抽屉 -->
        <el-drawer v-model="visibleDrawer" :title="title" direction="rtl" size="50%">
            <!-- 添加文章表单 -->
            <el-form :model="articleModel" label-width="100px">
                <el-form-item label="文章标题">
                    <el-input v-model="articleModel.title" placeholder="请输入标题"></el-input>
                </el-form-item>
                <el-form-item label="文章分类">
                    <el-select placeholder="请选择" v-model="articleModel.categoryId">
                        <el-option v-for="c in categorys" :key="c.id" :label="c.categoryName" :value="c.id">
                        </el-option>
                    </el-select>
                </el-form-item>
                <el-form-item label="文章封面">
                   
                    <el-upload class="avatar-uploader" ref="uploadRef" :auto-upload="true"
                    action=""
                    :http-request="handlehttprequest"
                    name="file"
                    :headers="{'Authorization':tokenStore.token}"
                    list-type="picture" 
                    v-model:file-list="articleModel.Img"
                    :on-success="uploadSuccess"
                    :limit="1"
                    accept=".jpg, .png, .jpeg"
                    >
                        <img v-if="articleModel.coverImg" :src="articleModel.coverImg" class="avatar" />
                        <el-icon v-else class="avatar-uploader-icon">
                            <Plus />
                        </el-icon>
                    </el-upload>
                </el-form-item>
                <el-form-item label="文章内容">
                    <div class="editor">
                        <quill-editor theme="snow" v-model:content="articleModel.content" contentType="html" >
                        </quill-editor>
                    </div>
                </el-form-item>
                <el-form-item>
                    <el-button type="primary" @click="title == '添加文章' ? addArticle('已发布') : updateArticle('已发布')">发布</el-button>
                    <el-button type="info" @click="title == '添加文章' ? addArticle('草稿') : updateArticle('草稿')">草稿</el-button>
                </el-form-item>
            </el-form>
        </el-drawer>
    </el-card>
</template>
<style lang="scss" scoped>
.page-container {
    min-height: 100%;
    box-sizing: border-box;

    .header {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
}

/* 抽屉样式 */
.avatar-uploader {
    :deep() {
        .avatar {
            width: 178px;
            height: 178px;
            display: block;
        }

        .el-upload {
            border: 1px dashed var(--el-border-color);
            border-radius: 6px;
            cursor: pointer;
            position: relative;
            overflow: hidden;
            transition: var(--el-transition-duration-fast);
        }

        .el-upload:hover {
            border-color: var(--el-color-primary);
        }

        .el-icon.avatar-uploader-icon {
            font-size: 28px;
            color: #8c939d;
            width: 178px;
            height: 178px;
            text-align: center;
        }
    }
}

.editor {
    width: 100%;

    :deep(.ql-editor) {
        min-height: 200px;
    }
}
</style>





<!-- // import { getCurrentInstance } from 'vue';
// const getImgURLOfBase64 = () => {
// // 使用axios获取图片文件流
// let {proxy} =getCurrentInstance();
// proxy.axios({
//   method: 'get',s
//   url: articleModel.value.coverImg,//"https://tse4-mm.cn.bing.net/th/id/OIP-C.mH9YLFEL5YdVxJM82mjVJQAAAA?rs=1&pid=ImgDetMain",//articleModel.value.coverImg,
//   responseType: 'arraybuffer',
//   headers: {
//      'Authorization':tokenStore.token
//     }
// })
// .then(response => {
//    // 将获取的二进制数据转换为Base64编码
//    console.log(response.data)
//    //const base64String = window.btoa(String.fromCharCode(...new Uint8Array(response.data)))
// //    const base64String = btoa(
// //      new Uint8Array(response.data)
// //        .reduce((data, byte) => data + String.fromCharCode(byte), '')
// //    );
//     var binary = '';
//     var bytes = new Uint8Array(response.data);
//     var len = bytes.byteLength;
//     for (var i = 0; i < len; i++) {
//         binary += String.fromCharCode(bytes[i]);
//     }
//     const base64String =  window.btoa(binary);
//    // 输出Base64编码
//    console.log(base64String);
//    console.log("data:${image/jpeg};base64," + base64String);
//    // 下面生成的base64拼接可以直接放到<img src="放在这儿直接展示"/>
//    Img.value =  "data:${image/jpeg};base64," + base64String 
//    //return "data:image/png;base64," + base64Strings
//    // * 注意不同image的mineType
//  })
//  .catch(error => {
//    console.error('Error fetching image:', error);
//  });
// }
// //sgetImgURLOfBase64();
// //... ...
// onMounted(() => {
//     getImgURLOfBase64();
// }) -->